Floating Point I/O

UMBC CMSC 211

Floating Point I/O

It takes special software to input and output floating point numbers. There are four routines in UTIL.LIB to do this for you:

Name input output

GetFP none floating point number from keyboard is in ST

PutFP ST on the FPU stack number is display and popped from ST

FP2Bin ds:si points to a string of ASCII characters real number in ST. ds:si is left pointing to first character after after the converted number.

Bin2FP ST on the FPU stack, es:di points to first character of a string of characters in which the converted number will be stored. converted number at specified location and stack is popped. es:di is left pointing to the first character after the last character stored.

Name	input	output
GetFP	none	floating point number from keyboard is in ST
PutFP	ST on the FPU stack	number is display and popped from ST
FP2Bin	ds:si points to a string of ASCII characters	real number in ST. ds:si is left pointing to first character after after the converted number.
Bin2FP	ST on the FPU stack, es:di points to first character of a string of characters in which the converted number will be stored.	converted number at specified location and stack is popped. es:di is left pointing to the first character after the last character stored.

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